Hi Nico, could you take a look at the built-in about:processes page (Shift+Esc) and see whether it matches up to the Windows task manager? It also should point toward the sites using a lot of resources, or sometimes it's Firefox itself.

I notice there are two Firefox entries in your Task Manager, which is unusual; normally there is only one entry. This can indicate a malware infection, but before jumping to any conclusions, I suggest checking the about:processes page.

Tnx for the fast reply! So...Reddit uses 639mb which is 1st place then twitter

Ah yea they kinda matches dont you think I should install some antivirus?

Hmm, I just realized you can't see the process ID numbers unless you use the "Details" tab in the Windows Task Manager. That might make it a bit easier to confirm that they match up.

A lot of people think Windows Defender is enough for real-time antivirus protection, but you can supplement that with some on-demand scanners. This article lists some Firefox user favorites: Troubleshoot Firefox issues caused by malware.

Ok here you go!

I want to see your performance tab.

It will be easier for you to compare between the Windows Task Manager Details tab and Firefox's about:processes if you sort the Details column by Name to get all the Firefox processes together. Then you should be able to confirm that the processes match up. Hopefully they do.

@jonzn4suse @jscher2000

I would bet that more than half the ram is used just logging into windows and not opening anything. You have an I9 with 16 threads, you can find more ram at a good price on ebay.

https://www.intel.com/content/www/us/en/products/sku/190887/intel-core-i99900kf-processor-16m-cache-up-to-5-00-ghz/specifications.html

Max Memory Size (dependent on memory type) 128 GB Memory Types DDR4-2666

https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=DDR4-2666&_sacat=0

Operating System: openSUSE Tumbleweed 20221219 KDE Plasma Version: 5.26.4 KDE Frameworks Version: 5.101.0 Qt Version: 5.15.7 Kernel Version: 6.0.12-1-default (64-bit) Graphics Platform: X11 Processors: 8 × Intel® Xeon® CPU E3-1535M v6 @ 3.10GHz Memory: 62.2 GiB of RAM Graphics Processor: Mesa Intel® HD Graphics P630 Product Name: HP ZBook 17 G4

I'm on a laptop bought 4 sticks a few months ago. see screenshot Why not get ram to match that big cpu and 3 drives.  ;-)

No. It doesnt use as you said I also waited few moments and I restarted pc to take this pics and I opened ff just one tab and is still uses 4bg(which is 2nd picture) its not cause of ram cause I used firefox for years and now July or something like that I had a same issue and I used other browser and I didnt had any issue now I went back to firefox and for like 2 or so months I didnt had any problems with it until now

Cool. Good luck.